Prayers will be said on Sunday morning at a service dedicated to Drummer Rigby at St Peter the Apostle Roman Catholic Church, in Woolwich, as well as during a service at the town's StMary Magdalene Parish Church.
The Rev Dr Giles Fraser - former Canon Chancellor of St Paul's Cathedral and the current parish priest at St Mary's in Newington, south London, said Bishop Welby was "the right man for the job".